How severe is CVE-2026-25449?

CVE-2026-25449 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-25449 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-25449?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-25449 have an EU (EUVD) identifier?

Yes. CVE-2026-25449 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12821.

When was CVE-2026-25449 published?

CVE-2026-25449 was published on 2026-03-18 and last updated on 2026-06-17.

CVE-2026-25449

CVE-2026-25449 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12821
Weakness: CWE-502
Published: 2026-03-18
Last modified: 2026-06-17

Description

Deserialization of Untrusted Data vulnerability in shinetheme Traveler traveler allows Object Injection.This issue affects Traveler: from n/a through < 3.2.8.1.

Frequently asked questions

What is CVE-2026-25449?: Deserialization of Untrusted Data vulnerability in shinetheme Traveler traveler allows Object Injection.This issue affects Traveler: from n/a through < 3.2.8.1.
How severe is CVE-2026-25449?: CVE-2026-25449 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-25449 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-25449?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-25449 have an EU (EUVD) identifier?: Yes. CVE-2026-25449 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12821.
When was CVE-2026-25449 published?: CVE-2026-25449 was published on 2026-03-18 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Theme/traveler/vulnerability/wordpress-traveler-theme-3-2-8-php-object-injection-vulnerability?_s_id=cve

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